Article(id=1241394838592090443, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241394830056681606, articleNumber=null, orderNo=null, doi=10.16579/j.issn.1001.9669.2025.05.016, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1720627200000, receivedDateStr=2024-07-11, revisedDate=1722441600000, revisedDateStr=2024-08-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1773901193521, onlineDateStr=2026-03-19, pubDate=1747238400000, pubDateStr=2025-05-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773901193521, onlineIssueDateStr=2026-03-19, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773901193521, creator=13701087609, updateTime=1773901193521, updator=13701087609, issue=Issue{id=1241394830056681606, tenantId=1146029695717560320, journalId=1227999626482147330, year='2025', volume='47', issue='5', pageStart='1', pageEnd='158', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773901191486, creator=13701087609, updateTime=1773901239759, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241395032599613636, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241394830056681606, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241395032599613637, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241394830056681606, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=140, endPage=151, ext={EN=ArticleExt(id=1241394838906663256, articleId=1241394838592090443, tenantId=1146029695717560320, journalId=1227999626482147330, language=EN, title=Stress and strength analysis of aluminum alloy structures under the effect of thermal and mechanical force, columnId=1228282192162390694, journalTitle=Journal of Mechanical Strength, columnName=Experimental Research·Testing Technology, runingTitle=null, highlight=null, articleAbstract=
The slat of aircraft is subjected to the combined action of thermal load and aerodynamic force during its service, which has an impact on the safety of the structure. The typical aluminum alloy structure widely used in slat structure is taken as the main research object, and the stress distribution and structural strength under the combined action of heat and force were studied by experiment and finite element method. Firstly, in order to explore the influence of temperature on material properties, the linear tensile test of 2024-T62 rectangular thin plate and the high temperature tensile failure test of perforated thin plate were carried out under four different temperature conditions. The test shows that the high temperature environment has a reduction effect on the elastic modulus of the material, and at 190 °C, the bearing strength of the test piece decreased by 15%. Therefore, considering the reduction effect of temperature on material parameters can establish a more accurate model for predicting structural strength. Secondly, aiming at the thermal stress problem of aluminum alloy parts and structures, the test and simulation of aluminum alloy sheet and simplified slat structure under the combined action of heat and force were carried out respectively. A set of modeling method and thermal stress measurement test technology under the combined action of heat and force were established. The maximum error between the simulation and test results of aluminum alloy sheet is 10%. The thermal stress simulation of the simplified slat structure has a good trend compared with the experimental results, and the maximum error is 20%. In addition, through the experiment, it is also found that the thermal stress is particularly sensitive to the setting of boundary conditions. For the model with complex constraints, it is necessary to expand the modeling range to the stable boundary conditions to simulate the actual thermal stress.
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飞机缝翼在服役过程中会受到热载荷和气动力的共同作用,并对结构的安全产生影响。以缝翼结构中广泛使用的典型铝合金结构作为主要研究对象,采用试验和有限元方法研究其在热力作用下的应力分布及结构强度。首先,为了探究温度对材料特性的影响,分别进行了4组不同温度状态下2024-T62矩形薄板的线性拉伸试验和开孔薄板的高温拉伸破坏试验,试验表明,高温环境对材料弹性模量有折减作用,并且在190 ℃环境下,试验件的承载强度下降了15%。因此,考虑温度对材料参数的折减作用可以建立更为精确地预估结构强度的模型。其次,针对铝合金零件及结构的热应力问题,分别以铝合金薄板和简化的缝翼结构为对象,进行热力共同作用下的试验和仿真,建立了一套热力共同作用下的建模方法及热应力测量的试验技术,铝合金薄板的仿真与试验结果对比误差最大为10%;简化的缝翼结构热应力仿真与试验结果对比的趋势较好,最大误差为20%。此外,通过该试验还发现热应力对边界条件的设置尤为敏感,对于约束复杂的模型,需要扩大建模范围至边界条件稳定处才能模拟实际热应力的作用。
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1.College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
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1.南京航空航天大学 航空学院,南京 210016
2.上海飞机设计研究院,上海 201210, bio={"content":"
何志全,男,1989年生,上海人,在读博士研究生,高级工程师;主要研究方向为飞机结构强度设计与试验验证;E-mail:hezhiquan@comac.cc。
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何志全,男,1989年生,上海人,在读博士研究生,高级工程师;主要研究方向为飞机结构强度设计与试验验证;E-mail:hezhiquan@comac.cc。
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SCHLAFF B A,
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1.College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China), AuthorCompanyExt(id=1241400386888716321, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, companyId=1241400386871939102, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.南京航空航天大学 航空学院,南京 210016)]), AuthorCompany(id=1241400386993573926, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, xref=2., ext=[AuthorCompanyExt(id=1241400387001962535, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, companyId=1241400386993573926, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Shanghai Aircraft Design and Research Institute, Shanghai 201210, China), AuthorCompanyExt(id=1241400387006156840, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, companyId=1241400386993573926, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.上海飞机设计研究院,上海 201210)])], figs=[ArticleFig(id=1241400391468896482, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.1, caption=
Schematic diagram of specimens, figureFileSmall=ZgNMvtPEVm7F85vS5nqkBw==, figureFileBig=IZbfECaBE3ZOu1u5IvwMdg==, tableContent=null), ArticleFig(id=1241400391536005352, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图1, caption=
试验件示意图, figureFileSmall=ZgNMvtPEVm7F85vS5nqkBw==, figureFileBig=IZbfECaBE3ZOu1u5IvwMdg==, tableContent=null), ArticleFig(id=1241400391640862958, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.2, caption=
Test platform building, figureFileSmall=TxsdbgVclyA+2aNJQQK5tA==, figureFileBig=rtQlDr25V0wv+dNIlhhYcQ==, tableContent=null), ArticleFig(id=1241400391737331954, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图2, caption=
试验平台搭建, figureFileSmall=TxsdbgVclyA+2aNJQQK5tA==, figureFileBig=rtQlDr25V0wv+dNIlhhYcQ==, tableContent=null), ArticleFig(id=1241400391837995255, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.3, caption=
Numerical model of aluminum alloy thin plate with openings, figureFileSmall=HpNjiXm5+MeZRnvQY4vh4A==, figureFileBig=Kpepruw1J0fndb92ag57yQ==, tableContent=null), ArticleFig(id=1241400391955435773, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图3, caption=
铝合金开孔薄板数值模型, figureFileSmall=HpNjiXm5+MeZRnvQY4vh4A==, figureFileBig=Kpepruw1J0fndb92ag57yQ==, tableContent=null), ArticleFig(id=1241400392039321856, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.4, caption=
von Mises stress nephogram when the specimen is destroyed(145 ℃), figureFileSmall=ld9tApl6iwecWzXIUZy0jQ==, figureFileBig=XY/IpYwd4x+C1qUP3ULjQA==, tableContent=null), ArticleFig(id=1241400392131596554, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图4, caption=
试验件破坏时von Mises应力云图(145 ℃), figureFileSmall=ld9tApl6iwecWzXIUZy0jQ==, figureFileBig=XY/IpYwd4x+C1qUP3ULjQA==, tableContent=null), ArticleFig(id=1241400392228065550, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.5, caption=
Numerical model of aluminum alloy rectangular thin plate, figureFileSmall=+14hhaimMkbHwuVTuXBM0g==, figureFileBig=gT6EeffWZ+UUVy2V0dFyWw==, tableContent=null), ArticleFig(id=1241400392324534551, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图5, caption=
铝合金矩形薄板数值模型, figureFileSmall=+14hhaimMkbHwuVTuXBM0g==, figureFileBig=gT6EeffWZ+UUVy2V0dFyWw==, tableContent=null), ArticleFig(id=1241400392412614943, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.6, caption=
Numerical model of conventional aluminum alloy bolted joint structure, figureFileSmall=2rA5KhLgmi6PjzfukNFiZQ==, figureFileBig=bM2yS327xvsiavFJYPq+3w==, tableContent=null), ArticleFig(id=1241400392521666856, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图6, caption=
常规铝合金螺栓连接结构数值模型, figureFileSmall=2rA5KhLgmi6PjzfukNFiZQ==, figureFileBig=bM2yS327xvsiavFJYPq+3w==, tableContent=null), ArticleFig(id=1241400392613941552, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.7, caption=
First-order buckling modal nephogram(magnified 50 times), figureFileSmall=k2yZYo2jnz5N1t6joLH3sg==, figureFileBig=VwfIx5vp0G4DYunqh9zgrg==, tableContent=null), ArticleFig(id=1241400392714604857, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图7, caption=
1阶屈曲模态云图(放大50倍), figureFileSmall=k2yZYo2jnz5N1t6joLH3sg==, figureFileBig=VwfIx5vp0G4DYunqh9zgrg==, tableContent=null), ArticleFig(id=1241400392806879551, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.8, caption=
Stress nephogram under the most severe working conditions, figureFileSmall=Qr9M4bpLslp1gZUPS5hkyw==, figureFileBig=0Co08v8eiGQ3WjNnT7MZOw==, tableContent=null), ArticleFig(id=1241400392894959941, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图8, caption=
最严酷工况下应力云图, figureFileSmall=Qr9M4bpLslp1gZUPS5hkyw==, figureFileBig=0Co08v8eiGQ3WjNnT7MZOw==, tableContent=null), ArticleFig(id=1241400393004011852, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.9, caption=
Finite element model including triangular table and fixture bottom column, figureFileSmall=7zSvKPpb1qzrTei2BW/ocQ==, figureFileBig=+xcIZujZ0YxkkRupXnzsAw==, tableContent=null), ArticleFig(id=1241400393117258066, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图9, caption=
包含三角台和夹具底柱的有限元模型, figureFileSmall=7zSvKPpb1qzrTei2BW/ocQ==, figureFileBig=+xcIZujZ0YxkkRupXnzsAw==, tableContent=null), ArticleFig(id=1241400393230504282, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.10, caption=
Stress nephogram under the most severe working conditions after expanding the modeling range, figureFileSmall=s1AMGPh/3JZeMD1OPOef4Q==, figureFileBig=Q22nI9IZ37CsgqJISRjZ5w==, tableContent=null), ArticleFig(id=1241400393343750496, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图10, caption=
扩大建模范围后最严酷工况下应力云图, figureFileSmall=s1AMGPh/3JZeMD1OPOef4Q==, figureFileBig=Q22nI9IZ37CsgqJISRjZ5w==, tableContent=null), ArticleFig(id=1241400393482162537, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.11, caption=
Displacement nephogram of the triangular table under the most severe working conditions, figureFileSmall=L5SGVpnc5eCQO+cA6v9GKg==, figureFileBig=vGaMM1yWomP7/z6tbuLd3A==, tableContent=null), ArticleFig(id=1241400393566048623, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图11, caption=
最严酷工况下三角台位移云图, figureFileSmall=L5SGVpnc5eCQO+cA6v9GKg==, figureFileBig=vGaMM1yWomP7/z6tbuLd3A==, tableContent=null), ArticleFig(id=1241400393675100534, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.12, caption=
Number of the holes on the specimen, figureFileSmall=ycjlpIlfZVOk7pgj33q5rQ==, figureFileBig=EQ5vM5rcG4L58+BU2+oXCA==, tableContent=null), ArticleFig(id=1241400395143106937, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图12, caption=
试验件上孔的编号, figureFileSmall=ycjlpIlfZVOk7pgj33q5rQ==, figureFileBig=EQ5vM5rcG4L58+BU2+oXCA==, tableContent=null), ArticleFig(id=1241400395239575935, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.13, caption=
Stress-strain curves under different temperature conditions, figureFileSmall=tWx+TdAfFdPKK4sGWYU10Q==, figureFileBig=bkAJ1NdQ+ei/gfAiIoSclA==, tableContent=null), ArticleFig(id=1241400395331850631, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图13, caption=
各温度状态下应力-应变曲线, figureFileSmall=tWx+TdAfFdPKK4sGWYU10Q==, figureFileBig=bkAJ1NdQ+ei/gfAiIoSclA==, tableContent=null), ArticleFig(id=1241400395440902541, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.14, caption=
Damage of aluminum alloy thin plate with openings, figureFileSmall=7u5b5lkJutC6ud8ymT5VVQ==, figureFileBig=IX1s2Xd/Bi3qyyWz5nlcZg==, tableContent=null), ArticleFig(id=1241400395562537364, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图14, caption=
铝合金开孔薄板破坏情况, figureFileSmall=7u5b5lkJutC6ud8ymT5VVQ==, figureFileBig=IX1s2Xd/Bi3qyyWz5nlcZg==, tableContent=null), ArticleFig(id=1241400395659006361, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.15, caption=
Position of strain gauges pasting, figureFileSmall=1+ot837fE0MOLsJyb87JdA==, figureFileBig=gNkLNFPMtCqSJExPoq7eDQ==, tableContent=null), ArticleFig(id=1241400395738698141, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图15, caption=
应变片粘贴位置, figureFileSmall=1+ot837fE0MOLsJyb87JdA==, figureFileBig=gNkLNFPMtCqSJExPoq7eDQ==, tableContent=null), ArticleFig(id=1241400395830972833, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig.16, caption=
Stress-strain curve of the first test under the condition of temperature difference of 40 ℃+20 kN(tension load), figureFileSmall=gMZCIFm9cOB0dG8QMuAGEQ==, figureFileBig=N42OtI3zf66+3drAsFuBFA==, tableContent=null), ArticleFig(id=1241400395914858916, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图16, caption=
温差40 ℃+20 kN(拉载)工况下第1组试验应力-应变曲线, figureFileSmall=gMZCIFm9cOB0dG8QMuAGEQ==, figureFileBig=N42OtI3zf66+3drAsFuBFA==, tableContent=null), ArticleFig(id=1241400396049076652, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig. 17, caption=
Coordinates and physical picture of strain gauge pasting position, figureFileSmall=3mN9f0xEQHPEVdnoFrsfwg==, figureFileBig=6JxLltq7KeUChiBFFF/CLw==, tableContent=null), ArticleFig(id=1241400396120379824, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图17, caption=
应变片粘贴位置坐标及实物图, figureFileSmall=3mN9f0xEQHPEVdnoFrsfwg==, figureFileBig=6JxLltq7KeUChiBFFF/CLw==, tableContent=null), ArticleFig(id=1241400396200071605, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Fig. 18, caption=
Comparison of simulation and test results under seven working conditions, figureFileSmall=IeQo3rUNvBSkcjP9RenqPA==, figureFileBig=dSsyIcOHrqrm7GQX0IEixg==, tableContent=null), ArticleFig(id=1241400396283957690, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=图18, caption=
7个工况下仿真与试验对比结果, figureFileSmall=IeQo3rUNvBSkcjP9RenqPA==, figureFileBig=dSsyIcOHrqrm7GQX0IEixg==, tableContent=null), ArticleFig(id=1241400396380426688, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Tab.1, caption=
Test project planning
, figureFileSmall=null, figureFileBig=null, tableContent=
试验类别 Test classification | 序号 Order number | 试验条件 Test condition | 试验件数目 Number of test pieces | 试验件材料 Test pieces material |
|---|
铝合金矩形薄板在不同温度状态下的线性拉伸试验 Linear tensile test of aluminum alloy rectangular thin plate under different temperature conditions | 1 | 室温Room temperature | 1 | 2024-T62 |
| 2 | 100 ℃ |
| 3 | 120 ℃ |
| 4 | 130 ℃ |
铝合金开孔薄板在不同温度状态下的强度试验 Strength test of aluminum alloy open-hole thin plate under different temperature conditions | 5 | 室温Room temperature | 2 | 2024-T62 |
| 6 | 145 ℃ | 2 |
| 7 | 160 ℃ | 2 |
| 8 | 190 ℃ | 2 |
铝合金矩形薄板在热力共同作用下的应力-应变试验 Stress-strain test of aluminum alloy rectangular thin plate under the combined action of heat and force | 9 | 温差40 ℃+20 kN(拉载) Temperature difference 40 ℃+20 kN(tensile load) | 1 | 2024-T62 |
| 10 | 温差70 ℃+20 kN(拉载) Temperature difference 70 ℃+20 kN(tensile load) | 1 |
铝合金螺栓连接结构在不同温度状态下的热应力试验 Thermal stress test of aluminum alloy bolted joint structure under different temperature conditions | 11 | 温差45 ℃ Temperature difference 45 ℃ | 1(装配件) 1(assembly parts) | 2024-T3 Q235 |
| 12 | 温差80 ℃ Temperature difference 80 ℃ |
| 13 | 温差110 ℃ Temperature difference 110 ℃ 温差45 ℃+5 kN(压载) |
| 14 | Temperature difference 45 ℃+5 kN (compressive load) |
| 15 | 温差45 ℃+10 kN(压载) Temperature difference 45 ℃+10 kN (compressive load) |
| 16 | 温差80 ℃+5 kN(压载) Temperature difference 80 ℃+5 kN (compressive load) |
| 17 | 温差80 ℃+10 kN(压载) Temperature difference 80 ℃+10 kN (compressive load) |
), ArticleFig(id=1241400396481089989, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=表1, caption=
试验项目规划
, figureFileSmall=null, figureFileBig=null, tableContent=
试验类别 Test classification | 序号 Order number | 试验条件 Test condition | 试验件数目 Number of test pieces | 试验件材料 Test pieces material |
|---|
铝合金矩形薄板在不同温度状态下的线性拉伸试验 Linear tensile test of aluminum alloy rectangular thin plate under different temperature conditions | 1 | 室温Room temperature | 1 | 2024-T62 |
| 2 | 100 ℃ |
| 3 | 120 ℃ |
| 4 | 130 ℃ |
铝合金开孔薄板在不同温度状态下的强度试验 Strength test of aluminum alloy open-hole thin plate under different temperature conditions | 5 | 室温Room temperature | 2 | 2024-T62 |
| 6 | 145 ℃ | 2 |
| 7 | 160 ℃ | 2 |
| 8 | 190 ℃ | 2 |
铝合金矩形薄板在热力共同作用下的应力-应变试验 Stress-strain test of aluminum alloy rectangular thin plate under the combined action of heat and force | 9 | 温差40 ℃+20 kN(拉载) Temperature difference 40 ℃+20 kN(tensile load) | 1 | 2024-T62 |
| 10 | 温差70 ℃+20 kN(拉载) Temperature difference 70 ℃+20 kN(tensile load) | 1 |
铝合金螺栓连接结构在不同温度状态下的热应力试验 Thermal stress test of aluminum alloy bolted joint structure under different temperature conditions | 11 | 温差45 ℃ Temperature difference 45 ℃ | 1(装配件) 1(assembly parts) | 2024-T3 Q235 |
| 12 | 温差80 ℃ Temperature difference 80 ℃ |
| 13 | 温差110 ℃ Temperature difference 110 ℃ 温差45 ℃+5 kN(压载) |
| 14 | Temperature difference 45 ℃+5 kN (compressive load) |
| 15 | 温差45 ℃+10 kN(压载) Temperature difference 45 ℃+10 kN (compressive load) |
| 16 | 温差80 ℃+5 kN(压载) Temperature difference 80 ℃+5 kN (compressive load) |
| 17 | 温差80 ℃+10 kN(压载) Temperature difference 80 ℃+10 kN (compressive load) |
), ArticleFig(id=1241400396657250763, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Tab.2, caption=
Material parameters of 2024-T62 at different temperatures
, figureFileSmall=null, figureFileBig=null, tableContent=
温度 Temperatures/℃ | 25~31 | 145 | 160 | 190 |
|---|
弹性模量 Elastic modulus/MPa | 72 400.0 | 68 780.0 | 68 056.0 | 66 246.0 |
泊松比 Poisson ratio | 0.33 | 0.33 | 0.33 | 0.33 |
拉伸屈服强度 Tensile yield strength/MPa | 338.0 | 314.3 | 304.0 | 278.9 |
拉伸极限强度 Tensile ultimate strength/ MPa | 427.5 | 384.7 | 372.0 | 336.9 |
延伸率 Elongation | 0.1 | 0.1 | 0.1 | 0.119 |
), ArticleFig(id=1241400396762108367, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=表2, caption=
2024-T62在不同温度下的材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
温度 Temperatures/℃ | 25~31 | 145 | 160 | 190 |
|---|
弹性模量 Elastic modulus/MPa | 72 400.0 | 68 780.0 | 68 056.0 | 66 246.0 |
泊松比 Poisson ratio | 0.33 | 0.33 | 0.33 | 0.33 |
拉伸屈服强度 Tensile yield strength/MPa | 338.0 | 314.3 | 304.0 | 278.9 |
拉伸极限强度 Tensile ultimate strength/ MPa | 427.5 | 384.7 | 372.0 | 336.9 |
延伸率 Elongation | 0.1 | 0.1 | 0.1 | 0.119 |
), ArticleFig(id=1241400396833411538, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Tab.3, caption=
Force transmission value and check of each hole under the most severe working conditions
, figureFileSmall=null, figureFileBig=null, tableContent=
孔编号 Number of holes | 仿真传力值 Simulation force transmission value/kN | 挤压屈服值 Extrusion yield value/kN | 挤压极限值 Extrusion ultimate value/kN | 温差110 ℃ Temperature difference 110 ℃ | 温差80 ℃+10 kN(压载) Temperature difference 80 ℃+10 kN (compressive load) |
|---|
温差110 ℃ Temperature difference 110 ℃ | 温差80 ℃+10 kN(压载) Temperature difference 80 ℃+10 kN (compressive load) | 屈服校核 Yield check | 强度校核 Strength check | 屈服校核 Yield check | 强度校核 Strength check |
|---|
| 1 | 9.6 | 8.5 | 12.2 | 15.1 | | √ | √ |
| 2 | 7.5 | 7.9 | √ | √ |
| 3 | 9.5 | 8.4 | √ | √ |
| 4 | 7.8 | 6.6 | 8.5 | 14.9 | | √ | √ |
| 5 | 1.6 | 2.8 | √ | √ |
| 6 | 8.0 | 6.8 | √ | √ |
| 7 | 11.4 | 8.4 | × | √ | √ |
| 8 | 1.1 | 0.8 | | √ | √ |
| 9 | 11.4 | 8.4 | × | √ | √ |
), ArticleFig(id=1241400396971823578, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=表3, caption=
最严酷工况下各孔传力值及校核情况
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孔编号 Number of holes | 仿真传力值 Simulation force transmission value/kN | 挤压屈服值 Extrusion yield value/kN | 挤压极限值 Extrusion ultimate value/kN | 温差110 ℃ Temperature difference 110 ℃ | 温差80 ℃+10 kN(压载) Temperature difference 80 ℃+10 kN (compressive load) |
|---|
温差110 ℃ Temperature difference 110 ℃ | 温差80 ℃+10 kN(压载) Temperature difference 80 ℃+10 kN (compressive load) | 屈服校核 Yield check | 强度校核 Strength check | 屈服校核 Yield check | 强度校核 Strength check |
|---|
| 1 | 9.6 | 8.5 | 12.2 | 15.1 | | √ | √ |
| 2 | 7.5 | 7.9 | √ | √ |
| 3 | 9.5 | 8.4 | √ | √ |
| 4 | 7.8 | 6.6 | 8.5 | 14.9 | | √ | √ |
| 5 | 1.6 | 2.8 | √ | √ |
| 6 | 8.0 | 6.8 | √ | √ |
| 7 | 11.4 | 8.4 | × | √ | √ |
| 8 | 1.1 | 0.8 | | √ | √ |
| 9 | 11.4 | 8.4 | × | √ | √ |
), ArticleFig(id=1241400397085069792, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Tab.4, caption=
Comparison of failure peak load of simulation and test
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| 27 ℃破坏载荷 Failure load at 27 ℃ | 145 ℃破坏载荷 Failure load at 145 ℃ | 160 ℃破坏载荷 Failure load at 160 ℃ | 190 ℃破坏载荷 Failure load at 190 ℃ |
|---|
第1组试验结果 Test results of group 1/N | 23 841.3 | 21 181.1 | 20 602.1 | 19 793.0 |
第2组试验结果 Test results of group 2/N | 22 614.1 | 21 040.0 | 20 564.4 | 19 524.2 |
试验平均值 Test average/N | 23 227.7 | 21 110.5 | 20 583.3 | 19 658.6 |
仿真结果 Simulation results/N | 22 439.5 | 20 251.1 | 19 603.2 | 17 831.3 |
| 误差Error/% | 3.5 | 4.2 | 5.0 | 10.2 |
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破坏峰值载荷仿真与试验对比
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| 27 ℃破坏载荷 Failure load at 27 ℃ | 145 ℃破坏载荷 Failure load at 145 ℃ | 160 ℃破坏载荷 Failure load at 160 ℃ | 190 ℃破坏载荷 Failure load at 190 ℃ |
|---|
第1组试验结果 Test results of group 1/N | 23 841.3 | 21 181.1 | 20 602.1 | 19 793.0 |
第2组试验结果 Test results of group 2/N | 22 614.1 | 21 040.0 | 20 564.4 | 19 524.2 |
试验平均值 Test average/N | 23 227.7 | 21 110.5 | 20 583.3 | 19 658.6 |
仿真结果 Simulation results/N | 22 439.5 | 20 251.1 | 19 603.2 | 17 831.3 |
| 误差Error/% | 3.5 | 4.2 | 5.0 | 10.2 |
), ArticleFig(id=1241400397265424872, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Tab.5, caption=
Comparison of test and simulation of aluminum alloy rectangular thin plate
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试验工况 Test conditions | 应变片点位 Position of strain gauge | 仿真应变 Simulation strain/10-6 | 试验应变 Test strain/10-6 | 误差 Error/% |
|---|
纯加载20 kN Pure force load 20 kN | A | 2 560.58 | 2 605.58 | -1.7 |
| B | 2 560.58 | 2 459.54 | 4.1 |
| A1 | 2 567.04 | 2 770.42 | -7.3 |
| B1 | 2 557.49 | 2 688.65 | -4.9 |
| C1 | 2 567.04 | 2 719.25 | -5.6 |
温差40 ℃+20 kN(压载) Temperature difference 40 ℃+20 kN(compressive load) | A | 1 967.92 | 2 015.04 | -2.3 |
| B | 1 967.92 | 1 871.25 | 5.2 |
温差70 ℃+20 kN(压载) Temperature difference 70 ℃+20 kN(compressive load) | A1 | 1 378.80 | 1 534.49 | -10.1 |
| B1 | 1 392.46 | 1 281.92 | -8.6 |
| C1 | 1 378.80 | 1 470.65 | -6.2 |
), ArticleFig(id=1241400397340922348, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=表5, caption=
铝合金矩形薄板试验与仿真对比
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试验工况 Test conditions | 应变片点位 Position of strain gauge | 仿真应变 Simulation strain/10-6 | 试验应变 Test strain/10-6 | 误差 Error/% |
|---|
纯加载20 kN Pure force load 20 kN | A | 2 560.58 | 2 605.58 | -1.7 |
| B | 2 560.58 | 2 459.54 | 4.1 |
| A1 | 2 567.04 | 2 770.42 | -7.3 |
| B1 | 2 557.49 | 2 688.65 | -4.9 |
| C1 | 2 567.04 | 2 719.25 | -5.6 |
温差40 ℃+20 kN(压载) Temperature difference 40 ℃+20 kN(compressive load) | A | 1 967.92 | 2 015.04 | -2.3 |
| B | 1 967.92 | 1 871.25 | 5.2 |
温差70 ℃+20 kN(压载) Temperature difference 70 ℃+20 kN(compressive load) | A1 | 1 378.80 | 1 534.49 | -10.1 |
| B1 | 1 392.46 | 1 281.92 | -8.6 |
| C1 | 1 378.80 | 1 470.65 | -6.2 |
), ArticleFig(id=1241400397437391347, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=EN, label=Tab.6, caption=
Numerical statistics of displacement under different loads
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累计施加载荷值 Cumulative applied load value/N | 位移示数 Displacement/mm | ΔU/(mm/kN) |
|---|
| 0 | 0 | — |
| -1 000 | 3.1 | 3.1 |
| -2 000 | 3.3 | 0.2 |
| -3 000 | 3.4 | 0.1 |
| -4 000 | 3.5 | 0.1 |
| -5 000 | 3.5 | 0 |
), ArticleFig(id=1241400397512888825, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241394838592090443, language=CN, label=表6, caption=
不同载荷下的位移数值统计
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累计施加载荷值 Cumulative applied load value/N | 位移示数 Displacement/mm | ΔU/(mm/kN) |
|---|
| 0 | 0 | — |
| -1 000 | 3.1 | 3.1 |
| -2 000 | 3.3 | 0.2 |
| -3 000 | 3.4 | 0.1 |
| -4 000 | 3.5 | 0.1 |
| -5 000 | 3.5 | 0 |
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